I am selling a new collapsible rubber lens hood with a 48mm thread. This is made in Japan and is boxed and new. I got a small set of these with a used camera that I bought recently. This somewhat off-beat filter thread is used by a number of desirable high-end lenses such as the Canon LTM 50mm F1.4, and possibly the Nikkor 85mm F2 for LTM and/or Nikon rangefinder mount, and possibly the Summilux. If you need one of these you will probably know it!
Price: $5 plus shipping (USA shipping is $2, overseas at cost, but probably not too much)